Oxidation of Austenitic Steel TP347HFG Exposed to Supercritical Water with Different Dissolved Oxygen Concentration

摘要：

The oxidation of austenitic fine-grained steel TP347HFG exposed to supercritical water at 550 °C and 25 MPawith the dissolved oxygen concentration of 100 ppb, 300 ppb and 2000 ppb was investigated. The results indicated weight gain increased with the dissolved oxygen increasing. The herpesshaped oxides were formed on the sample surface. The oxide layer was a typical dual-layered structure with a Fe-rich outer layer and a Fe-Cr-Ni-rich inner layer. The influences of the dissolved oxygen concentration and grain size on oxidation behavior were discussed finally.

关键词： Austenitic steel Oxidation Supercritical water Dissolved oxygen.

作者: Nai-qiang ZHANG Bao-rang LI Yang BAI Hong XU

作者单位: Key Laboratory of Condition Monitoring and Control for Power Plant Equipment of Ministry of Education, North China Electric Power University, Beijing 102206, PR China

会议类型: 国际会议

会议名称: 2011 International Conference on Machanical Engineering,Materials and Energy(2011年机械工程、材料与能源国际会议 ICMEME 2011)

会议地点: 大连

会议语种:英文

页码: 1179-1183

在线出版日期: 2011-10-19（万方平台首次上网日期，不代表论文的发表时间）